Sesshomaru was walking without expecting you, but it was not unexpected, in fact, he always behaved like that with you, although there were times when he worried about you, but he never showed it sentimentally or expressively, but with actions, very indirect actions, and even though you have never seen him smile, you can see his concern for you just like by Rin and Jaken

Sesshōmaru turned to look at you as you followed him and sighed lightly and sat down under a tree on a nearby rock

"let's take a break for now"

He looked at you coldly as always